Car-door-locking mechanism



1,635,398 July 7 1927' A. CAMPBELL ET AL CAR DOOR LOCKING MECHANISM Oriizinal Filed Aug. 26. 1921 LR 5% 05. Y TPN E mm flm W FSym 5 M BY a THE/

' Patna July 12,1927.

U i T E S T AM'YLE CAMPBELL AND ALBERT E. ZIMMEB, OF CHICAGO,-ILLINOIS, ASSIGNORS TO ENTERPRISE RAILWAY EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A.

POBATION OF ILLINOIS.

OAR-DOOR-LOCWG MECHANISM.

Original application filed August 28, 1981, Serial Eo. 495,865. Divided and thisapplication filed May 2, 1925. Serial No. 87,363.

This invention relates to improvements in car door locking mechanisms, and comprises a division of the subject-matter disclosed in our pending U. S. application,

Serial No. 495,665, filed August 26th, 1921.

An object of the invention is to provide a door lock or latch arrangement for a railway car door, which is simple in form, relatively inexpensive to make, apply and maintain, and which will always insure the doors being fully closed when locked to prevent leakage of the contents of the car while in transit.

Another object of the invention is to-provide a door locking mechanism which eliminates the use of chains or equivalent flexible conditions, and which is so arranged that as the doors are ushed or kicked to closed position, the mec anism will automatically lock or latch the doors in closed position.

A still further object of the invention is to provide a mechanism of the character above indicated wherein a looking or latching element is employed, which constitutes 2 a movable extension of a beam construction secured to the free edge of the doors.

Other objects of the invention will more clearly appear from the description and claims hereinafter following.

In the drawings forming apart of this specification Figure 1 is a side elevational view of a portion of a hopper car showing the invention in connection therewith, the

parts being in the condition assumed when at the doors are in closed position, and Figure 2 is a front elevationa view of a part of the structure shown in Fi re 1.

- Referring to the drawings the type of car shown is one having transversely aligned 4o hoppers, one on each side of the center sill construction of the car, only the outer-end of the car hopper with so much of the construction necessary to show the mechanism being illustrated. As customary, such hoppets are formed with trian lar outer side sheets 620, which slope slightly inwardly and downwardly towards the center of the car. Each of such hoppers is also provided with a. downwardly s oping hopper bottom sheet (not shown), and the opening of each hopper on side of the car is adapted structure at each side of the car, only one set being illustrated in the drawing. Each locking arrangement comprises a latching element proper A", and a fixed co-operating member B. The latching element A is shown in the form of a bar pivoted at its.

inner end on a bolt 90, supported in a suitable bracket 628 secured to the door and brace 624. The fixed member B isin the form of a casting riveted to the side hopper 7 sheet 620 and having its lower end extended beyond the line of the door when the latter is in closed position. The upper edge of the extended end is notched so asto provide a transverse shoulder 635 over which the latching element A is adapted to fall to locked position so as to bear thereagainst. The shoulder 635 is disposed in a vertical plane thereby presenting a bearing surface to the element A which is at right an les thereto when the said element is in ed position. The extreme outer end of the extension of the member B is beveled as .indicated at 636 so as to provide a cam edge for guiding the pivoted latch late A into position when the door is closedi It will be noted that the latch bar cannot fall 'below the channel member 624 when the door is open, and consequently it will always travel in the path of the inclined edge 636. When unlocking the door the latch element A may be swung through an arc of degrees to an inoperative position so as to rest on the channel beam, and becompletely out of the way of the shouldered bracket. Thus an operator may unlock one side of the door and thereafter walk around to the other side of the car and unlock the latch on the latter side with asurance that the latch first opened will not accidentally fall into engagement with the correspondlng shouldered bracket. The arrangement as provided in construction is exceedingly simple andstrong inasmuch as the latch member A is merely a continuation of the reinforcing channel '624 beyond the plane of the side edge of the door, which latter is reinforced with an outstanding marginal flange 637 at its side edge.

In order to provide sufiicient clearance for I the member A to clear the said flange 637,

and also to provide a suitable abutment im- 'mediately adjacent the edge of the door for the latch member, the construction includes a filler portion'638 interposed between the latch member and the door, said portion 638 .being riveted to the door plate as indicated at 639. The arrangement thus pro- 1 vides guides between which the latch mem-- ber. A may freely swing and yet be restrained against fundue movement.

While we have herein shown and described what we now consider the preferredimanner of carrying out our invention, the .same is merely illustrative and we contemplate all changes and -modifications that comewithin the scope ofethe claims appended hereto.

whatweclaimisz. 1. In a dump car, the combination witha dumping door; of a beam extending adja- 3 cent the free-edge of the door and termnating adjacent .a side edge of the door; a

bar pivotally mounted on said beam, said bar extending continuously from the 'ter-. minusof said beam beyondthe side-edge of 212116311001 and constituting ,-a longitudinally 'thefree disposed supporting extension of the beam; and a shouldered bracket on the car engage able with the bar on the ,door to maintain the door in closed position. 1 2. In a dump car, the combination with a. dumping door, said door having an outma'rginal flange adjacent the side edgeythereof; oi a beam extending adjacent e of the door and terminating adjacent a SIdG edge of said door; a bar pivotally' mounted onthe beam and adapted to swin substantially in the; plane of the door, said r being arrangedon said'beam so as 1 toextend from the -end of the beam across the-plane of the door flange and clear the same; and a shouldered bracket on the car engageable with the bar on the doorat an to the plane of pivotal movement thereof to maintain the door in closed position.

' 3.. In a car, the combination with a "dumping door; of a beam extending adjacent the free edge-of the door. and terminating adjacent a side edge of the door; a

bracket secured to the beam and arranged withm the side edge of said door; a bar pivotally mountedon the bracket, said bar being'adaptedto extend from said bracket be- .fOIfthGPUIPOSG of spacing the baroutwardly from the flange; and means on the'car cooperable with the bar to maintain the door.

in locked position.

5. In a dump car,

ment, said bar being adapted to be positioned either to automatically engage with the combination with a' swinging door, saiddoor having a reinforce-'- ment secured thereto, a shouldered bracket on the car adjacent an edge of the door; and i a barpivotally mounted on. the reinforcethe bracket when the door-is'moved to'closed position, or to be placed-in inoperative posi tion with respect to the bracket when the, door is in closed position.

6. In a dump car, the combination with a hopper having a downwardly sloping side wall; a swinging door having its side edge conforming to the slope of the side wall; a

locking bar pivotally mounted on the. door,

said bar extending beyond the side edge-of the door; and .a shouldered bracket fixedly secured to the downwardly sloping side wall;

said shouldered s-b racketY' being cooperabl'e with the bar to maintain the door in closed, position, said bracket'havingthe shouldered.

portion disposed in a=-vertical plane and at'- right angles to the. plane of'the bar when the door .is .in closed. position.

7. In a dump car, the combination with swinging. door; ozfi a reinforcing channel beam'extendmg along the: free edge thereof; a loclnn" bar; means for pivotally mountmg said ocking bar onsaid channel member to swing in the plane 'ofitlie door; and a" I shouldered bracket fixedly secured 1 to the side vwall of the car-adjacent a side ed e of the door, said shouldered bracket eing to maintain the door in locked position.-

8. In .a dump .car, the combination with'a' adapted to engageythe free end of the bar dam ing door; of a reinforcin member ex- 2 tending along-the free edge of t e door; said ing bar pivotally mountedon said bracket,

correspond ng; side edg'eof the oo'rand adapted to swing in the'plane ofjthe door;

ashouldered bracket secured to the side wall" of the car adjacent the side of the'door, said e harms w b utstanding from the r door; a racket carried by-said web; a lock- 2g.

said locking bar being extended be 0nd the I memes shouldered bracket being adapted to receive the end of the locking bar to maintain the door in locked position.

9. In a dump car, the combination'with a dumping door having a flange outstanding from the side edge of the door; of 'a reinforc ing member extending along the free edge of the door; said member having a web outstanding from the door; a bracket carried by said web; a-locking bar pivotally mounted on said bracket to swing in the plane of the door, said bar being spaced outwardly from the door to clear the flange on the door; a filler member interposed between the bar and the door, said member being extended to form a bearing for the bar adjacent the door flange; and a shouldered,

bracket secured to the car, said bracket being co-operable with the bar to maintainthe door in locked position.

10. In a dump car, the combination with a dumping. door formed of a metallic plate;

of a reinforcing member extending adjacent the free edge of the door; a bracket secured to the said member; a locking bar pivotally mounted to swing in the plane of the door, said bar being interposedbetween the bracket and the door plate; a pivoted connection for the bar extending through the door plate and the bracket; and a shouldered bracket on the car cooperable with an end of the bar to lock the door in closed position.

11. In a dump car, the combination with a dumping door; of a reinforcing member adjacent the free edge of the door; a pivotally mounted locking member adapted to swing in the plane of the door, said memher being disposed between guides associated with the reinforcing member on the door; and a shouldered member adjacent an edge of the door cootperablewith the locking member to lock the door in closed position. 12. In a dump car, the combination with a dumping door; of reinforcing means extending adjacent the free edge of the door, said reinforcing means being provided with a movable extension projecting beyond the door structure, said extension being movable at an angle to the stresses upon said reinforcing means, and functioning as a'continuation thereof against said stresses; and means on the car structure co-operable with the movable extension to maintain the door in closed position.

13. In a dump car, the combination with "transversely disposed hoppers providing dumping openings; of a plurality of pivoted doors for closing said openings; a continuous member extending along the free edges of said doors, the opposite ends of said member being provided with extensions projecting beyond the doors, said projections being movable at an angle to the stresses upon said member, and constituting continuations of said reinforcing element against said stresses; and 'means connected with the car structure and co-operable with said extensions to lock the doors in closed position.

In witness that we claim the foregoing we have hereunto subscribed our names this 29th day of April, 1925.

. 1 ARGYLE GAMPBEIAL.

ALBERT E. Z t it *l R, 

